Malo_Tux said:
Get a bunch of men in Daisy Dukes then play this
<youtube=bBlbPw7WAqM>
I was going to just say that I support the general advice so far of a peaceful counter-protest being careful not to give them grounds to sue, but I LOVE this idea!
May I also suggest getting in touch with local construction firms, native organisations, cowboys and costume shops and doing the YMCA [http://www.youtube.com/watch?v=CS9OO0S5w2k] properly?
I've also heard of times they showed up to do this and found, in the morning, that every single one of their vehicles was blocked in by a big pickup, every single tow-truck in the whole county was already out on call somewhere else and none of them would be available until about an hour after the funeral ended ... or all their tyres got slashed and nobody in the county really needed their business badly enough to bother selling them new ones.
I'd do this one, too:
Not my favourite song in the world but it ought to annoy them. Honourable mention to "Somebody To Love" by Queen for the same reason, although it's less obvious.
We've got our own way to drown them out:
The 700 at Calgary [http://www.youtube.com/watch?v=2hZUZCoMKxA] vid has a side-link to "Top Secret Drum Corps Edinburgh Military Tattoo," which is a fascinating, if irrational, concept.
The Welsh are pretty good at making themselves heard:
You can make up a few more verses if you need to. Get enough people to join in and you can drown out pretty much anything.
One the British Army likes:
Can't forget our allies:
Go on. You must have a local band with their own amps and speakers, a few people with extension leads and someone who'll let you plug in at their place.